Furnace.



Pl WINGERT.

FURNACE.

APPLICATION FILED MAR. 29, 19].).

FRESH Am Patented Nov. 16, 1915.

WITNESSES E WN m TToRnEY PAUL WINGEBT, 0F MONTPELIER, OHIO.

FURNACE.

Specification of Letters Patent.

Patented Nov, ltd, 1935.

Application filed March 29, 1915. Serial N 0. 17,598.

To all whom it may concern:

Be it brown that 1, PAUL Wmonar, a citizen of the United States, residing at Montpelier, county of Williams, State of Ohio, have invented a certain new and useful Improvement in Furnaces, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanyin drawings, which form a part of this spec' cation.

lhis invention relates to furnaces for heating houses and buildings, and especially to what is known as the pipeless or the one register furnace.

It has for its object an arrangement of the furnace structure so that the cold air is taken from one part of the register and conveyed to the bottom of the furnace casing in a wayso as to prevent the heating of the air in its travel so as to interfere with or retard circulation.

I am aware that it is not new to take the cold air through the same register through which heat is delivered, but in prior constructions no arrangement has been made to insure proper circulation.

In the drawings,-Figure 1 is a vertical section of the installation, some of the parts being shown in elevation. Fig. 2 is a plan view.

The furnace casing is designated a, hot air delivery pipe I), the furnace itself 0, and the register in the floor (Z. Cold air is taken from the outside portions of the register by means of a cold air box e that surrounds the pipe I) but is spaced therefrom by a dead air space f that acts as an efficient insulator. The ring 9 fits over the inside wall of the cold air box and the wall of the hot air pipe I), so as to prevent air from circulating downward between the two members and also for spacing them. The cold air box is connected with the bottom of the furnace casing by fines 72. preferably four in number. These fiues extend to the outside of the furnace casing and are spaced therefrom so as to prevent the same from being highly heated by theheat thrown out by the furnace. This form of construction allows the taking of cold air through the same register as the hot air is delivered and at the same time prevents the cold air line from being heated so that it will tend to retard or interfere with the circulation.

One or more of the cold air fines is made with a T i which allows a connection with a fresh air inlet to the outside atmosphere when such is desired. This may be regulated by a damper j.

What I claim is:

1. In a one-register furnace, the combination of a furnace, a furnace casing thereabout, a hot-air delivery pipe leading up- .ward from the top ofthe furnace casing, a

cold-air box open at the top, closed at the bottom, and spaced from the top of the furnace casing, said cold-air box completely surrounding the hot-air delivery pipe but spaced therefrom by an air space, a single register extending over the open top of the cold air box and the opening in the discharge end of the hot-air delivery pipe, and one or more flues leading from the said coldair box around the furnace casing, from which they are spaced, and opening into the bottom of the furnace casing.

2. In a one-register furnace, the combination of a furnace, a furnace casing thereabout, a hot-air delivery pipe leading upward from the top of the furnace casing, a cold-air box open at the top, closed at the bottom, and spaced from the top of the furnace casing, said cold air box completely surrounding the hot-air box delivery pipe but spaced therefrom by a dead-air space a ring between the hot-airdelivery pipe and the cold-air box to prevent circulation through the space therebetween, a single register extending over the open top of the cold-air box and also the opening in the end of the hot-air delivery pipe, and one or more fiues leading from said cold-air box around the furnace casing, from which they are spaced, and opening into the lower end of the furnace casing.

3. A furnace installation, having a furnace, a casing thereabout, a hot a1r delivery pipe leading therefrom, a register through which the hot air pipe delivers hot air, a cold air box taking cold air through the same register and located adjacent the In testimony whereof, I sign, this speci= gunciiace pipe "butdspaflced1 thgrefrpm by & ficattion in the presence of two witnesses.

ea alr space, an a me ea mg rom sal cold air box to the bottom of the furnace PAUL WINGERT' 5 casing and provided with a T portion-at Witnesses:

the top and having a damper to control a, STUART G. BARNES, separate outside air intake Vmcmm G. 8mm. 

